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If you're self-employed or do a lot of business traveling, you know how important it can be to save your receipts for future use, whether it's to send them to your finance department the next time you're in the office, or to make sure you get all of the tax deductions you can take when it comes time to pony up to the IRS. If you have an iPhone, Genius Scan can make sure you have all of your receipts and any other important documents saved on your phone in case the scraps of paper go missing.

Genius Scan doesn't do text recognition, so don't expect to get searchable, editable text documents out of your scans, but what you will get are PDF documents and JPG images out of the scans that you take using the app. If you and your best friend are at a bar and you dream up the next best Web app on the back of a bar napkin, Genius Scan can make sure you snag a copy of your ideas before you spill your drink all over it.

Genius Scan does more than just take snapshots of your documents. The utility is smart enough to determine where the edges of the document you're trying to scan are, so if you have a receipt sitting on top of a table, the app can identify the sides of the receipt to make sure you only get the information you need. Even if the receipt isn't scanned straight on, or the camera is angled when you take the image, Genius Scan can correct the angle and perspective when the scan is complete, and do some post-processing to make sure the scan is a good one and all of the information you wanted is stored in the file.

Additionally, Genius Scan saves your scan locally and processes it on your phone, so you don't need a data connection or Wi-Fi in order to save your images and work with them. If you want to send them to someone else however, you have the option of sending them a JPG image or as PDF documents. You can even create scanned documents made from multiple joined scans. Once you have your scans stored, you can manage them, add them to compilations, and rename them.

Genius Scan is free and is available for the iPhone and iPod Touch as long as your device is running iOS 4 or later. There are lots of pay apps that contain more robust OCR (optical character recognition) features and filing systems for enterprise use, but if its more important to you to be able to save your receipts and to have the flexibility to get them off of your phone when you need them, Genius Scan is a great way to get the job done.